Food reserve in encysted Entamoeba is

Options

A. Starch
B. Glycogen
C. Fat
D. None.

Answer

To answer the question about the food reserve in encysted Entamoeba, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Encystation**:
- Entamoeba is a unicellular eukaryotic organism that can undergo a process called encystation. This occurs during unfavorable conditions, where the organism forms a protective cyst around itself.

2. **Purpose of Encystation**:
- The cyst protects the Entamoeba from harsh environmental conditions, allowing it to survive until conditions improve.

3. **Food Storage During Encystation**:
- While in the cyst form, Entamoeba needs to have a food reserve to sustain itself since it cannot perform metabolic activities effectively during this dormant stage.

4. **Identifying the Food Reserve**:
- The food reserve stored in the cyst is crucial for the survival of the organism. In the case of Entamoeba, the food reserve is stored in the form of glycogen.

5. **Evaluating the Options**:
- The options provided are:
- A) Starch
- B) Glycogen
- C) Fat
- D) None
- Starch is primarily found in plants and is not the correct answer. Fat is not the primary storage form for Entamoeba. Therefore, the correct answer is glycogen, which is a common food reserve in animals.

6. **Conclusion**:
- The food reserve in encysted Entamoeba is glycogen.

### Final Answer:
**Glycogen**